Effect of Titania (TiO<sub>2</sub>) Addition to Zirconia Toughened Alumina (ZTA) Phases, Hardness and Microstructure-Reference-Cited by-同舟云学术

Effect of Titania (TiO₂) Addition to Zirconia Toughened Alumina (ZTA) Phases, Hardness and Microstructure

Published:2015-02 Issue: Volume:1087 Page:293-298
ISSN:1662-8985
Container-title:Advanced Materials Research
language:
Short-container-title:AMR

Author:

Manshor Hanisah¹,Md Aris Suriyana²,Ahmad Azhar Ahmad Zahirani³,Abdullah Ezzat Chan¹,Ahmad Zainal Arifin⁴

Affiliation:

1. Universiti Teknologi Malaysia

2. International Islamic University Malaysia

3. Universiti Islam Antarabangsa Malaysia

4. Universiti Sains Malaysia

Abstract

Ceramic composites consist of zirconia toughened alumina (ZTA) with TiO2as additive was fabricated via solid state sintering route. Numerous studies have indicated that TiO2can be used as sintering additives for Al2O3and the ability of microstructural control introduce by TIO2. The Vickers hardness of the obtained ZTA-TiO2was evaluated as a function of different TiO2 addition. Each sample was dry mixed, uniaxially pressed and sintered at 1600 °C for 4 hours in pressureless condition. It is noticed that the presence of TiO2greatly influence the microstructure of Al2O3. Al2O3grains tend to increase in size with more addition of TiO2. Characteristics of Vickers hardness increases increases from 1516.13 HV (0 wt% TiO2) to 1615.8 HV (3 wt% TiO2). Addition of TiO2also increases the bulk density of ZTA-TiO2from 3.90 g/cm3(0 wt% TiO2) to 4.10 g/cm3(3 wt% TiO2).

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Link

https://www.scientific.net/AMR.1087.293.pdf

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